~/talk

Different Trace Methods and Efficient Ways to Utilize Them

Talkat RISC-V Summit 2019 · 2019-12-09..12-12
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Claims that trace gives nonintrusive full execution history and live power correlation, demonstrated on a RISC‑V FPGA board with a trace drop and physical adapter feeding IAR tooling. Covers serial UART and SWD-like narrow traces, RAM buffer and gigabit external trace paths, explains kilobytes of on‑chip ROM can capture thousands of instructions, shows timeline and call‑stack views, and uses triggers, PC sampling for profiling and code‑coverage. The demo runs and validates faster root‑cause hunting and everyday performance tuning.

AI-written summary · about

  1. 0:00Start
  2. 0:48RISC-V Trace specifics
  3. 3:55Seeing every instruction
  4. 4:20Example of power debugging and profiling
  5. 5:51Types of trace
  6. 7:42Parallel Trace (4-bit) from RISC-V FPGA Implementation
  7. 8:01Call Stack and interrupt timeline
  8. 9:34Code quality
  9. 10:02Everything together (synchronized)
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